From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 In-Reply-To: <20141202024223.31A5BB827@mail.bitblocks.com> References: <1417410858.1852249.197150289.78A68333@webmail.messagingengine.com> <1417423412.1914203.197194673.02F8E8C7@webmail.messagingengine.com> <20141202024223.31A5BB827@mail.bitblocks.com> Date: Mon, 1 Dec 2014 21:31:27 -0600 Message-ID: From: Steven Stallion To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Content-Type: text/plain; charset=UTF-8 Subject: Re: [9fans] Porting plan9 Topicbox-Message-UUID: 318ad668-ead9-11e9-9d60-3106f5b1d025 On Mon, Dec 1, 2014 at 8:42 PM, Bakul Shah wrote: > On Mon, 01 Dec 2014 15:54:36 CST Steven Stallion wrote: >> >> FWIW, u-boot is not a net-negative at all. For SoC's it simplifies >> boot significantly - there is zero reason to eschew the functionality >> it brings. > > Do you think it is worth adding support for "flattened device > tree" (a data structure that describes system hardware)? IIRC > uboot already supports FDT. Supposedly FDT reduces the > porting effort and more than one system may even be able to > use the same kernel (but with a different FDT). I looked into it at the time. FDT makes more sense for targets that have dynamically addressable peripherals (think PCI et al.) For an SoC, you're dealing with fixed addresses, so there is very little gain in this context. Steve